Mass Underground, LLC: Memberships, Fees, Classes, and Facilities

THE YAHD is a local fitness gym known for its community-focused approach and inspired programming. Members get access to a class-based schedule, and the brand supports training through focused programming, small group classes, and running programs. Pricing varies by plan and may depend on contract length. Membership plans are not detailed on this page. New members may pay one-time fees, and limited-time promotions may offer discounts. Overall, THE YAHD is recognized for its athlete-focused environment and is a good fit for people who want structured classes and progressive training.

The Training Lab Southie is a local fitness gym known for its strength training programs and diverse class offerings. Members typically get access to a class-based schedule, and the brand often supports training through small group strength training and high-energy classes. Pricing at The Training Lab Southie varies by plan type and may depend on promotions. Membership plans generally range from $49 for a 2-week unlimited class trial. New members may pay one-time fees such as the intro class fee, and limited-time promotions may waive joining fees. Overall, The Training Lab Southie is recognized for its supportive community and expert coaching and is a good fit for people who want structured classes and personalized attention.

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